## Physics: The ElementsNorman Robert Campbell (1880-1949) was an English physicist and philosopher who made a significant contribution to the philosophy of science. In this book, which was first published in 1920, Campbell presents a detailed critical analysis of various areas of physics. Aimed at the advanced reader, with a 'familiarity with all the facts and theories of physics, ancient and modern', the text is divided into two main parts: the first part deals with 'The Propositions of Science' and the second discusses aspects of 'Measurement'. An appendix and detailed index are also included. This book will be of value to anyone with an interest in the development of physics and the history of science. |

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### Contents

INTRODUCTION | 1 |

PART I | 6 |

THE PROPOSITIONS OF SCIENCE | 13 |

THE SUBJECT MATTER OF SCIENCE | 15 |

THE NATURE OF LAWS | 38 |

THE NATURE OF LAWS 601ml | 56 |

THE DISCOVERY AND PROOF OF LAWS | 88 |

THE EXPLANATION OF LAWS | 113 |

FUNDAMENTAL MEASUREMENT | 267 |

PHYSICAL NUMBER | 295 |

FRACTIONAL AND NEGATIVE MAGNITUDES | 310 |

NUMERICAL LAWS AND DERIVED MAGNITUDES | 328 |

UNITS AND DIMENSIONS | 361 |

THE USES OF DIMENSIONS | 403 |

ERRORS OF MEASUREMENT METHODICAL ERRORS | 437 |

ERRORS OF MEASUREMENT ERRORS OF CONSISTENCY AND THE ADJUSTMENT OF OBSERVATIONS | 457 |

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Accordingly actually alternative analogy application arbitrary argument arithmetic mean asserted assigned assumption asymmetrical relation body Boyle’s Law causal relation cause characteristic concepts concerning conclusion connected consider continuous function deﬁned deﬁnition degree of knowledge density derived magnitude determined dimensions discussion electrical resistance equally probable equation of condition errors of consistency established example experiment experimental explain expressed fact ﬁnd ﬁnite ﬁrst ﬁxed formal constant fulﬁlled function fundamental magnitudes graph happen hypothesis hypothetical ideas important inconsistent inquiry involved judgements kind large number law of addition law of errors length mass mathematical matter method no-dimensional magnitude numerical law numerical value observations occur pendulum physical signiﬁcance possible properties propositions question real magnitudes reason recognised regarded represent result scientiﬁc sense silver similar simply standard series statement substance suggested symmetrical system of measurement theory threepenny bits trials true value truth uniform association unit volume weight